One out for blood (7)

I believe the answer is:

vampire

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'one out for blood' is the definition.
The definition and answer can be both people as well as being singular nouns.
Maybe you can see a link between them that I can't see?

This is all the clue.

Can you help me to learn more?

(Other definitions for vampire that I've seen before include "Type of bat" , "Member of the living dead, drinks blood" , "Transylvanian bloodsucker" , "Corpse that rises at night to drink the blood of the living" , "Blood-sucking ghoul" .)

I've seen this clue in The Sun.

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